A bundle with xylem and phloem separated by strip of cambium is
A
Collateral and closed
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B
Collateral and open
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C
Concentric and closed
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D
Bicollateral and open.
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Solution
The correct option is A Collateral and open A vascular bundle in which a strand of phloem is present external to the strand of xylem on the same radius side by side is known as collateral bundle. An open collateral vascular bundle has cambium called fascicular cambium between xylem and phloem. The bundles can increase in diameter by normal secondary growth with the help of fascicular cambium. Ex. Dicotyledonous stem.